Table 2 Comparison of the specific capacitance values for LiCoO2 and LiCoO1.6(F0.8Cl0.2)0.4 electrodes with those previously reported.

From: Anion engineering in lithium cobalt oxide for application in high-performance supercapacitors

Electrodes

Cs (F g−1) at (2A g−1)

Electrolyte

Potential window (V)

Reference electrode

capacitance retention

Cycles-Current density (A g−1)

References

LiCoO2

129.06

KOH 2 M

0–0.6

Ag/AgCl

91.42

2000–1

This study

LiCoO1.6(F0.8Cl0.2)0.4

503.3

KOH 2 M

0–0.6

Ag/AgCl

93.6

2000–1

This study

LiCoO2-CP

477.8

LiCl-PVA 5.8 M

0–0.9

Ag/AgCl

83.9

2000–6

55

LiCoO2

657

KOH 2 M

0-.07

Hg/HgO

96.8

2000–1

40

Co3O4

375

KOH 5 M

0–0.4

Ag/AgCl

96

5000–1

56

Co3O4/Graphene

955.6

KOH 2 M

0.05–0.45

Ag/AgCl

93.7

20,000–10

57

CDP-PANI/CNT

~ 87.4

H2SO4 1M

− 0.2–0.8

97

5000–5

32

MnO2/Carbon-CNTs

~ 460.38

KOH 2M

-0.25–0.55

90

5000–10

12

Co3O4–NiO hybrids

~ 740

KOH 2M

94.2

5000–5

13